A man's regular pay is $3 per hour up to 40 hours. Overtime is twice the payment for regular time. If he was paid $168, how many hours overtime did he work?

Which of the following would undermine the authority of parents in the home?

A loudspeaker emits a steady note.A girl sings a note which is of lower pitch but higher volume. The sound wave she is producing has:

When testing a leaf for the presence of starch, the correct sequence of procedures is:

All the following software are examples of operating systems EXCEPT

Which one of the following taxonomic groups contains the greatest number of organisms?

After a 10% discount, an article is sold for $360. The price before the discount was

The halogen used to make bleach is called:

John Smith is employed at $8 per hour, he is paid time and a half for hours of work excess Of 44 hours per week. Last week worked for 50 hours. His gross earnings were

What is the name of the interface used by visually impaired persons to operate a computer system?

Arrange the following secondary storage devices in order of increasing capacity from smallest to largest: a 1GB memory card, CD-ROM, DVD and a 128 MB flash drive.

If U = {1, 2, 3, . . . 10 } and S = { 2, 4, 6, 8, 10 }, then S ' =

To remove limescale from a tap you need:

When an acid neutralises an alkali the pH is likely to be:

If US$1.00 is equivalent to EC$2.68, how much in US$ would one get for EC$100?

Osmosis is:

Which of the following would play an important part in a government′s efforts to increase consumption of locally produced food?

For Mg++ to turn into an atom of magnesium metal it must:

Which of the following is based on exploiting non-renewable natural resources?

Which one of the following best compares the eye and a camera?